spdns.de

Checked 22 October 2026, 00:23 UTC · via 8.8.8.8
!Passed with warnings
21 passed 4 warnings 0 failed 4 info

Registration

info

.de country-code

Found

TLD
.de (country-code)
Public suffix
.spdns.de
ICANN policies apply
no

Checks

  • i
    .de is a country-code TLD (ccTLD)
    Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry. Domains are registered under the public suffix .spdns.de.
    #1
  • ✓ TLD delegated and signed #2
    .de is delegated in the root zone and DNSSEC-signed.
  • i
    Registration data not available
    No registration data via RDAP: the registry of .de offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.
    #3

Delegation

info

dns-001.securepoint.de, dyndns.securepoint.de, ns1.m-online.net, ns2.m-online.net, ns3.m-online.net, ns4.m-online.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
dns-001.securepoint.de, dyndns.securepoint.de, ns1.m-online.net, ns2.m-online.net, ns3.m-online.net, ns4.m-online.net
NS in the zone
dns-001.securepoint.de, dyndns.securepoint.de, ns1.m-online.net, ns2.m-online.net, ns3.m-online.net, ns4.m-online.net
NameserverAddressesNetwork (AS)Glue
dns-001.securepoint.de85.236.63.190AS15456 INTERNETX-AS - InterNetX GmbH, DE85.236.63.190
dyndns.securepoint.de195.4.152.238AS60175 WAG - Wortmann AG, DE-
ns1.m-online.net212.18.0.8 2001:a60:0:11::53AS8767 MNET-AS - M-net Telekommunikations GmbH, DE AS8767 MNET-AS - M-net Telekommunikations GmbH, DE-
ns2.m-online.net212.18.3.8AS8767 MNET-AS - M-net Telekommunikations GmbH, DE-
ns3.m-online.net217.160.41.67 2001:8d8:1801:8039::1AS8560 IONOS-AS - IONOS SE, DE AS8560 IONOS-AS - IONOS SE, DE-
ns4.m-online.net212.114.171.64 2001:a60:0:20::53AS8767 MNET-AS - M-net Telekommunikations GmbH, DE AS8767 MNET-AS - M-net Telekommunikations GmbH, DE-

Checks

  • ✓ 6 nameservers #6
    Delegated to dns-001.securepoint.de, dyndns.securepoint.de, ns1.m-online.net, ns2.m-online.net, ns3.m-online.net, ns4.m-online.net.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 6 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 4 autonomous systems #11
    The nameservers are spread over: AS15456 (INTERNETX-AS - InterNetX GmbH, DE): 1 address; AS60175 (WAG - Wortmann AG, DE): 1 address; AS8560 (IONOS-AS - IONOS SE, DE): 2 addresses; AS8767 (MNET-AS - M-net Telekommunikations GmbH, DE): 5 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: dns-001.securepoint.de, dyndns.securepoint.de, ns2.m-online.net.
    #13

Nameservers

warn

9 of 9 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns-001.securepoint.de 85.236.63.190NOERROR, 9 ms, authoritativenoyes / yesrefusedKnot DNS 3.6.1
dyndns.securepoint.de 195.4.152.238NOERROR, 12 ms, authoritativenoyes / yesrefusedKnot DNS 2.8.1
ns1.m-online.net 212.18.0.8NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns1.m-online.net 2001:a60:0:11::53NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns2.m-online.net 212.18.3.8NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns3.m-online.net 217.160.41.67NOERROR, 17 ms, authoritativenoyes / yesrefused-
ns3.m-online.net 2001:8d8:1801:8039::1NOERROR, 17 ms, authoritativenoyes / yesrefused-
ns4.m-online.net 212.114.171.64NOERROR, 6 ms, authoritativenoyes / yesrefused-
ns4.m-online.net 2001:a60:0:20::53NOERROR, 7 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 9 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: dns-001.securepoint.de: "Knot DNS 3.6.1"; dyndns.securepoint.de: "Knot DNS 2.8.1". Hide or replace the version string.
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✓ TCP supported #19
    All nameservers answer over TCP.
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

warn

serial 1484246794 · primary dyndns.securepoint.de

Found

Primary (MNAME)
dyndns.securepoint.de
Contact (RNAME)
hostmaster.securepoint.de
Serial
1484246794
Refresh / retry
180 s / 180 s
Expire
604800 s
Negative TTL
180 s

Serial per nameserver

NameserverSerial
dns-001.securepoint.de (85.236.63.190)1484246794
dyndns.securepoint.de (195.4.152.238)1484246794
ns1.m-online.net (212.18.0.8)1484246778
ns1.m-online.net (2001:a60:0:11::53)1484246778
ns2.m-online.net (212.18.3.8)1484246776
ns3.m-online.net (217.160.41.67)1484246779
ns3.m-online.net (2001:8d8:1801:8039::1)1484246779
ns4.m-online.net (212.114.171.64)1484246777
ns4.m-online.net (2001:a60:0:20::53)1484246777

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 1484246776 on ns2.m-online.net (212.18.3.8); 1484246777 on ns4.m-online.net (212.114.171.64), ns4.m-online.net (2001:a60:0:20::53); 1484246778 on ns1.m-online.net (212.18.0.8), ns1.m-online.net (2001:a60:0:11::53); 1484246779 on ns3.m-online.net (217.160.41.67), ns3.m-online.net (2001:8d8:1801:8039::1); 1484246794 on dns-001.securepoint.de (85.236.63.190), dyndns.securepoint.de (195.4.152.238). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • !
    Unusual SOA timers
    refresh 3m is outside 20m–1d; retry 3m should be shorter than refresh 3m; negative caching TTL (minimum) 3m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 3m, retry 3m, expire 7d, negative TTL 3m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dyndns.securepoint.de is one of the listed nameservers.
  • ✓ Contact hostmaster@securepoint.de #25
    The SOA RNAME hostmaster.securepoint.de means hostmaster@securepoint.de.
  • ✓ Timestamp serial #26
    The serial 1484246794 is a Unix timestamp (2017-01-12 18:46 UTC).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

9 records at the apex

Found

Read from
85.236.63.190:53
TypeValueTTL
SOAdyndns.securepoint.de. hostmaster.securepoint.de. 1484246794 180 180 604800 18060
NSns1.m-online.net.3600
NSns2.m-online.net.3600
NSns3.m-online.net.3600
NSns4.m-online.net.3600
NSdyndns.securepoint.de.3600
NSdns-001.securepoint.de.3600
A195.4.152.2393600
AAAA2a00:dca0:100:9:53::1300

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, AAAA 5m, NS 1h. The NS TTL at the parent is 1d and in the zone 1h; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35